Specifically, a dedicated server running Debian 12.
After a monthly sudo apt upgrade? (Is a monthly upgrade even necessary?)
Never? (unless there is a security update?)
Edit: I may be missing kernel upgrades. Those are probably good... I can't remember if I installed a LTS kernel. I imagine it would be unsecure to post an exact kernel version, however.
bring back old forums that had a weekly scheduled reboot that was always the same but you would always forget about and panic for 10 seconds and be about to email the webmaster before remembering
(ok it was more about reindexing sql databases than updating the actual server kernel)
Maintenance is maintenance.